1.7258

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#1.7258

Description

1.7258 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 1.7258

Category	Type	Steel Grade
Steel Grades	High Alloy	1.7258
		1.5415
		15Mo3
		1.5415
		22Mo4
		1.5429
		16Mo5
		1.5423
		16CrMo4
		1.7242
		24CrMo5

Chemical composition(mass fraction)(wt.%) of the 1.7258

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.20-0.28	0.40	0.50-0.80	0.035	0.035	0.90-1.20	≤ 0.60
Mo	Al	Cu	Nb	Ti	V	Ce
0.20-0.35
N	Co	Pb	B	Other

Mechanical Properties of steel grade 1.7258

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
212 (≥)	347 (≥)	34	42	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	144

Physical Properties of steel grade 1.7258

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
24	-	-			0.42	-
511	251	-	31.3	232		-
699	-	34	13.2			331	412

Heat Treatment of steel grade 1.7258

Heat treated : 1213°C - 1189°C

Technological Curves of steel grade 1.7258

No Curve

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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